let circleY = 100;

let maxPixelJump = 20;

​

function setup() {

  createCanvas(600, 500);

  noStroke();

  colorMode(HSB);

​

  circleX = width / 2;

  circleY = height / 2;

}

​

function draw() {

​

  let hue = circleX;

  fill(hue, 100, 100, 0.5);

  circleX = circleX + random(-maxPixelJump, maxPixelJump);

  circleY = circleY + random(-maxPixelJump, maxPixelJump);

  if(circleX < 0 || circleX > width){

    circleX = width / 2;

  }

  if(circleY < 0 || circleY > height){

    circleY = height / 2;

  }

  circle(circleX, circleY, 50);

}

​

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